Home / 426,523.46-640,277.25-216,604.26

Finding the Fourth Proportional to 426,523.46, 640,277.25 and 216,604.26

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Solution

The fourth proportional to 426,523.46, 640,277.25 and 216,604.26 is: 325,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,523.46 : 640,277.25 = 216,604.26 : x
  2. Step 2: Convert to fraction form
    426,523.46/640,277.25 = 216,604.26/x
  3. Step 3: Cross multiply
    426,523.46x = 640,277.25 × 216,604.26
  4. Step 4: Simplify right side
    426,523.46x = 138,686,779,931.09
  5. Step 5: Solve for x
    x = 138,686,779,931.09/426,523.46
  6. Step 6: Final answer
    x = 325,156.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.